Lateral pin-point gate injection molding device

Abstract

The utility model discloses a lateral pin-point gate injection molding device, which belongs to the technical field of injection molding and comprises an injection molding table, a feed opening formed in an inner cavity of the injection molding table, an injection molding component arranged on the upper surface of the injection molding table, and a cooling component arranged on the lower surface of the injection molding table. Molten plastic is fed into the sprue bush through the injection nozzle and enters the inner cavities of the fixed mold and the movable mold through the sprue bush, at the moment, the cooling-water machine is started to input cold water into the cooling cavity through the inlet pipe, heat is taken away to accelerate cooling of the molten plastic in the fixed mold and the movable mold, and circulation is formed through the outlet pipe; and water carrying heat is conveyed into the cooling-water machine again to be cooled, plastic curing is facilitated, the waiting time is shortened, and the efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, and more particularly to a lateral point gate injection molding device. Background Art

[0002] The side point gate injection molding device and injection mold are special equipment used in the production of plastic products. During the injection molding process, the molten plastic needs to be injected into the mold cavity through a specific channel (gate) to form the desired shape. It is often used to produce products with high surface quality requirements and complex geometric shapes.

[0003] Existing injection molding devices feed molten plastic into the mold cavity through a nozzle, filling it to a predetermined shape. At this time, the remaining molten plastic is prevented from continuing to flow into the cavity, waiting for the plastic inside the mold to begin to cool and solidify. When the plastic is completely solidified, the mold is opened and the product can be removed from the mold.

[0004] In actual use of the prior art, due to the high temperature of the molten plastic, it takes a long time to cool down, thereby reducing the overall efficiency of the production line. Therefore, a side point gate injection molding device is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the utility model provides a side point gate injection molding device, which feeds the molten plastic into the interior of the gate sleeve through the injection nozzle, and then enters the inner cavity of the fixed mold and the movable mold through the gate sleeve. At this time, the chiller is started to input cold water into the cooling cavity through the inlet pipe, taking away heat and accelerating the cooling of the molten plastic in the fixed mold and the movable mold, and forms a circulation through the outlet pipe, and the water carrying heat is re-delivered to the chiller for cooling, which helps the plastic solidify, reduces waiting time, and improves the efficiency of the device.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A side point gate injection molding device comprises an injection molding table, an inner cavity of the injection molding table is provided with a discharge port, an upper surface of the injection molding table is provided with an injection molding assembly, and a lower surface of the injection molding table is provided with a cooling assembly; the injection molding assembly comprises a fixed mold fixedly connected to the upper surface of the injection molding table, the upper surface of the injection molding table is movably connected to a movable mold, fixed plates are symmetrically fixedly connected on both sides of the movable mold, an electric push rod is fixedly connected to one side of the fixed plate, and a special-shaped push rod is fixedly connected to the other side of the fixed plate, a push rod is interspersed with the inner cavity of the movable mold, and a gate sleeve is fixedly connected to the inner cavity of one side of the fixed mold; the cooling assembly comprises a chiller fixedly connected to the lower surface of the injection molding table, the chiller, the inner cavities of the fixed mold and the movable mold are all provided with cooling cavities.

[0010] Furthermore, a plurality of supporting legs are fixedly connected to the lower surface of the injection molding table, and one side of the fixed mold and one side of the movable mold are in abutment with each other.

[0011] Furthermore, one side of the sprue sleeve is connected to an injection nozzle, and one end of the special-shaped push rod moves in the inner cavity of the fixed mold.

[0012] Furthermore, one end of the electric push rod is fixedly connected to a side plate, and the lower surface of the side plate is fixedly connected to the upper surface of the injection molding table.

[0013] Furthermore, one end of the push rod is fixedly connected to a positioning plate, and the lower surface of the positioning plate is fixedly connected to the upper surface of the injection molding table.

[0014] Furthermore, the water inlet end of the chiller is connected to two inlet pipes, and the other ends of the two inlet pipes are respectively connected to the cooling chambers in the fixed mold and the movable mold. The water outlet end of the chiller is connected to two outlet pipes, and the other ends of the two outlet pipes are respectively connected to the cooling chambers in the fixed mold and the movable mold. The outlet pipes and inlet pipes are both hoses.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) In this solution, the molten plastic is fed into the sprue sleeve through the injection nozzle and then into the inner cavity of the fixed mold and the movable mold through the sprue sleeve. At this time, the chiller is started to input cold water into the cooling cavity through the inlet pipe, taking away the heat to accelerate the cooling of the molten plastic in the fixed mold and the movable mold, and a circulation is formed through the outlet pipe to return the heat-carrying water to the chiller for cooling, which helps the plastic solidify, reduces the waiting time, and improves the efficiency of the device.

[0018] (2) This solution starts the electric push rod to drive the fixed plate and the movable mold to move outward. When the movable mold moves, the push rod is used to eject the finished product adhering to the inside of the movable mold. At the same time, when the fixed plate moves, it will drive the special-shaped push rod to move and eject the finished product adhering to the fixed mold. This ensures that the finished product can be ejected regardless of whether it is attached to the fixed mold or the movable mold, realizing automatic material removal and reducing the need for manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0021] Figure 3 This is a half-section schematic diagram of the internal structure of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Injection molding table; 101. Support legs; 102. Feeding port; 2. Injection molding components; 201. Fixed mold; 202. Moving mold; 203. Fixed plate; 204. Side plate; 205. Electric push rod; 206. Positioning plate; 207. Push rod; 208. Special-shaped push rod; 209. Sprue bushing; 210. Injection nozzle; 3. Cooling components; 301. Chiller; 302. Inlet pipe; 303. Outlet pipe; 304. Cooling chamber. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Example 1

[0028] Reference Figure 1-3 , which is the first embodiment of the present utility model, and provides a side point gate injection molding device, including an injection molding table 1, a discharge port 102 is opened in the inner cavity of the injection molding table 1, an injection molding assembly 2 is provided on the upper surface of the injection molding table 1, including a fixed mold 201 fixedly connected to the upper surface of the injection molding table 1, a movable mold 202 is movably connected to the upper surface of the injection molding table 1, fixed plates 203 are symmetrically fixedly connected on both sides of the movable mold 202, an electric push rod 205 is fixedly connected to one side of the fixed plate 203, and a special-shaped push rod 208 is fixedly connected to the other side of the fixed plate 203, a push rod 207 is interspersed in the inner cavity of the movable mold 202, and a gate sleeve 209 is fixedly connected to the inner cavity of one side of the fixed mold 201.

[0029] Specifically, a plurality of support legs 101 are fixedly connected to the lower surface of the injection molding table 1, one side of the fixed mold 201 is in contact with one side of the movable mold 202, one side of the sprue sleeve 209 is connected to the injection nozzle 210, one end of the special-shaped push rod 208 moves in the inner cavity of the fixed mold 201, one end of the electric push rod 205 is fixedly connected to the side plate 204, the lower surface of the side plate 204 is fixedly connected to the upper surface of the injection molding table 1, one end of the push rod 207 is fixedly connected to the positioning plate 206, and the lower surface of the positioning plate 206 is fixedly connected to the upper surface of the injection molding table 1.

[0030] Furthermore, the injection molding table 1 is supported by the support legs 101, and the injection nozzle 210 is connected to the external molten plastic through a pipe, and the molten plastic is sent into the inside of the gate sleeve 209 through the injection nozzle 210, and enters the inner cavity of the fixed mold 201 and the movable mold 202 through the gate sleeve 209. After cooling is completed, the electric push rod 205 is started to drive the fixed plate 203 and the movable mold 202 to move outward. When the movable mold 202 moves, the push rod 207 is used to eject the finished product adhered to the inside of the movable mold 202. At the same time, when the fixed plate 203 moves, it will drive the special-shaped push rod 208 to move to eject the finished product adhered to the fixed mold 201, ensuring that the final finished product can be ejected regardless of whether it is attached to the fixed mold 201 or the movable mold 202.

[0031] Example 2

[0032] Reference Figure 1-3, which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. A cooling assembly 3 is provided on the lower surface of the injection molding table 1, including a chiller 301 fixedly connected to the lower surface of the injection molding table 1. The chiller 301, the fixed mold 201 and the movable mold 202 are all provided with cooling cavities 304 in their inner cavities.

[0033] Specifically, the water inlet end of the chiller 301 is connected to two inlet pipes 302, and the other ends of the two inlet pipes 302 are respectively connected to the cooling chambers 304 in the fixed mold 201 and the movable mold 202. The water outlet end of the chiller 301 is connected to two outlet pipes 303, and the other ends of the two outlet pipes 303 are respectively connected to the cooling chambers 304 in the fixed mold 201 and the movable mold 202. The outlet pipes 303 and the inlet pipes 302 are both hoses.

[0034] Furthermore, the chiller 301 is started to input cold water into the cooling chamber 304 through the inlet pipe 302, taking away heat to accelerate the cooling of the molten plastic in the fixed mold 201 and the movable mold 202, and forming a circulation through the outlet pipe 303 to transport the heat-carrying water back to the chiller for cooling, helping the plastic to solidify, reducing waiting time, improving the efficiency of the device, shortening the time of each injection molding cycle, and thus improving the overall efficiency of the production line.

[0035] Working principle: During the use of the device, the operator places the injection molding table 1 on the designated place for injection molding through the support legs 101. The injection nozzle 210 is connected to the external molten plastic through a pipe, and the molten plastic is sent into the sprue sleeve 209 through the injection nozzle 210, and then enters the inner cavity of the fixed mold 201 and the movable mold 202 through the sprue sleeve 209. At this time, the chiller 301 is started to input cold water into the cooling chamber 304 through the inlet pipe 302, taking away the heat and accelerating the cooling of the molten plastic in the fixed mold 201 and the movable mold 202. The water is then circulated through the outlet pipe 303 to return the heat-carrying water to the chiller. Cooling helps the plastic solidify, reduces waiting time, and improves the efficiency of the device. After cooling is completed, the electric push rod 205 is started to drive the fixed plate 203 and the movable mold 202 to move outward. When the movable mold 202 moves, the push rod 207 is used to eject the finished product adhered to the inside of the movable mold 202. At the same time, when the fixed plate 203 moves, it will drive the special-shaped push rod 208 to move and eject the finished product adhered to the fixed mold 201, ensuring that the final finished product can be ejected no matter it is attached to the fixed mold 201 or the movable mold 202, realizing automatic stripping, and the ejected finished product automatically falls through the discharge port 102.

[0036] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A side point gate injection molding device, comprising an injection molding table (1), characterized in that: The inner cavity of the injection molding table (1) is provided with a discharge port (102), the upper surface of the injection molding table (1) is provided with an injection molding component (2), and the lower surface of the injection molding table (1) is provided with a cooling component (3); The injection molding assembly (2) comprises a fixed mold (201) fixedly connected to the upper surface of the injection molding platform (1), a movable mold (202) movably connected to the upper surface of the injection molding platform (1), fixed plates (203) symmetrically fixedly connected to both sides of the movable mold (202), an electric push rod (205) fixedly connected to one side of the fixed plate (203), and a special-shaped push rod (208) fixedly connected to the other side of the fixed plate (203), a push rod (207) inserted into the inner cavity of the movable mold (202), and a gate sleeve (209) fixedly connected to the inner cavity of one side of the fixed mold (201); The cooling assembly (3) comprises a water chiller (301) fixedly connected to the lower surface of the injection molding table (1), wherein the water chiller (301), the fixed mold (201) and the movable mold (202) are all provided with cooling cavities (304).

2. A side point gate injection molding device according to claim 1, characterized in that: The lower surface of the injection molding table (1) is fixedly connected with a plurality of support legs (101), and one side of the fixed mold (201) is in contact with one side of the movable mold (202).

3. The side point gate injection molding device according to claim 1, characterized in that: One side of the sprue sleeve (209) is connected to an injection nozzle (210), and one end of the special-shaped push rod (208) moves in the inner cavity of the fixed mold (201).

4. The side point gate injection molding device according to claim 1, characterized in that: One end of the electric push rod (205) is fixedly connected to a side plate (204), and the lower surface of the side plate (204) is fixedly connected to the upper surface of the injection molding table (1).

5. The side point gate injection molding device according to claim 1, characterized in that: One end of the push rod (207) is fixedly connected to a positioning plate (206), and the lower surface of the positioning plate (206) is fixedly connected to the upper surface of the injection molding table (1).

6. The side point gate injection molding device according to claim 1, characterized in that: The water inlet end of the chiller (301) is connected to two inlet pipes (302), and the other ends of the two inlet pipes (302) are respectively connected to the cooling chambers (304) in the fixed mold (201) and the movable mold (202). The water outlet end of the chiller (301) is connected to two outlet pipes (303), and the other ends of the two outlet pipes (303) are respectively connected to the cooling chambers (304) in the fixed mold (201) and the movable mold (202). The outlet pipes (303) and the inlet pipes (302) are both hoses.

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